Match the type of chromatin with the chromosome structure or region. chromatin of telomeres v Choose... facultative heterochromatin constitutive heterochromatin chromatin of centromeres eychromatin
Q: Less condensed region of an interplase chromosome that stains diffusely. Which one Beads on a…
A: Chromosomes are made up of both proteins and DNA. Chromosomes are compact form of DNA formed when…
Q: Which of the following cell organelles are sites of protein synthesis? Ribosomes O Lysosomes O…
A: Protein synthesis is primarily responsible for amino acid disposal. Amino acids are activated by…
Q: The active genes are the extended chromatin can not be seen with the microscope and is called…
A: The nucleosome is the unit of compaction and can be defined as a basic functional and structural…
Q: In the image below, which arrow denotes the protein that forms the nested DNA loops in chromatin?…
A: Linker histones (H1 and its variations) or HMG proteins bind lengths of DNA that connect adjacent…
Q: Which one explains the form of genetic material before nuclear division? a) Euchromatin b)…
A: Nucleus is the control center of the cell. It is a large organelle consisting of nuclear envelope,…
Q: Chromatin of eukaryotes is organized into repeating interactions with protein octamers called…
A: Deoxyribonucleic acid is a particle made out of two polynucleotide chains that loop around one…
Q: Chromatin is OA complex of cohesin proteins O Where sister chromatids are most closely attached A…
A: Biological macromolecules are those large molecules that are necessary for the survival and growth…
Q: In all cells, microtubules nucleate from the centrosome and then become stabilized or collapse. What…
A: Microtubules are made up of protein tubulins that can undergo quick growth or dissolution by…
Q: Which of the following is not a major class of chromatin proteins?a) Histonesb) Topoisomerasesc) SMC…
A: Chromatin is the material that makes up a chromosome that consists of DNA and protein. Chromatin…
Q: All of the following pairs are well-match, except one: O Addition of Tubulin dimers occurs more…
A: Microtubules are a part of cytoskeletal elements in eukaryotes. There are two categories of…
Q: Chromosomes align at metaphase plate equidistantly from the opposite pole to avoid unequal…
A: Metaphase It is the fourth stage of the division of the cell. It is the stage in which the…
Q: Define the following terms and their relationships to one another:A. interphase chromosomeB. mitotic…
A: Gene is the primary fundamental unit of heredity. The plants and animals both have certain nucleic…
Q: I. Euchromatin is typically gene-rich and composed of loosely packed DNA. II. Heterochromatin…
A: Chromosomes are the condensed form of chromatin. Chromatin gets folded and highly packed to form…
Q: Which of the following structures are associated with the ends of chromosomes and may shorten over…
A: Chromosomes are thread like structure made of a single molecule of DNA associated with proteins.…
Q: Research has shown that more mutations accumulate in regions of a chromosome that consist of compact…
A: Mutations are defined as an error that occurs in DNA copying during cell division which changes the…
Q: The basic building blocks of chromatin structure- DNA .A O Nucleosome.B O Selenoid .C O Protein .D O
A: DNA(deoxyribonucleic acid) is a molecule comprised of two polypeptide chains that coil around each…
Q: Describe the levels of chromatin packing you’d expect to see in aninterphase nucleus.
A: DNA is Deoxyribonucleic acid has a deoxyribose as pentose sugar. Its structure has H group attached…
Q: 34. Chromatin is composed of roughly equal amounts of DNA and proteins called histones. Nucleosome…
A:
Q: Would you expect to find active genes in regions of heterochromatin or euchromatin
A: DNA is the genetic material of all organisms except some viruses. The DNA are double stranded…
Q: For each of the following pairs of chromatin types,which is the most condensed?a. 100 Å fiber or 300…
A: There are four levels of condensation: Nucleosome – DNA is tightly complexed with histones, wrapping…
Q: UESTION 4 human cell contains 46 chromosomes, which are often "decondensed," and the nucleus is 5-10…
A: Nucleus is a central part of Eukaryotic cell which is very important as it contains chromosomes that…
Q: Identifies genes that are in regions of less condensed chromatin Identifies actively transcribed…
A: DNAase I is an enzyme that cleaves DNA in the extracellular space down to an average of…
Q: The extended chromatin can not be seen with the microscope and is an active gene Chromatid A O…
A: Gene is the specific sequence of a nucleotide present in the DNA. It encodes a particular protein.
Q: The nuclear matrix composition: a. lamina, nucleosome b. cortex, lamina, c. nucleosome d. lamina,…
A: The nuclear matrix is described as a type of structure that majorly comprises non-histone proteins.…
Q: FORTNITE FA Lobes Bhe pcture Use the word bank label A. B&CThe words mayy be used more than onG :…
A: Chromosomes are made up of genes which are made up of DNA. these chromosomes divide during cell…
Q: Answer the following four questions about DNA and chromosomes. (Hint: there may be slightly…
A: Deoxyribonucleic acid (DNA) It is one of the genetic material which have two polynucleotide chains.…
Q: Discuss the structure of telomeres and their roles inmaintaining chromosome integrity.
A: In eukaryotic cells, the linear chromosomes terminate at both ends in protective caps called…
Q: Some portions of the chromosomes are coiled with inactive genes as electron- dense masses of…
A: DNA(deoxyribonucleic acid) is a molecule comprised of two polypeptide chains that coil around each…
Q: Across framework for chromosome movement during cell division 19.) the stage of cell division in…
A: DNA is genetic material present inside the nucleus of the cell which carries genetic information .…
Q: dency of tra Which of the following would you expect to find in a region of euchromatin? DA. more…
A: Euchromatin is a lightly packed form of chromatin or DNA. As it is accessible to may transcriptional…
Q: s the chromosomes are being replicated, what happened to the centrosome?
A: A centrosome is a structure present in the cell that participates in cell division. The centrosome…
Q: Which of the following is the most compact level of chromatin structure? Metaphase chromosomes…
A: Metaphase chromosomes is the most compact level of chromatin structure.
Q: The compaction leading to a metaphase chromosome involveswhich of the following?a. The formation of…
A: Cell cycle, the organised sequence of events in preparation for cell division occurring in a cell.…
Q: Some portions of the chromosomes are coiled with inactive genes as electron-dense masses of…
A: Packaging of DNA: The DNA in eukaryotes is assembled into chromatin, which are complexes made of…
Q: Which of the following statements concerning eukaryotic chromatin is true. Histones have an…
A: Eukaryotic chromatin is made up of protein and DNA . It consists of beads referred to as nucleosome.…
Q: Put the following levels of chromosome organization in order from least complex (least packaged…
A: The word chromosome arises from the Greek word chroma means color and soma which means body because…
Q: Which statement(s) below correctly describe(s) telomeres? (Select all that apply.) O Telomeres…
A: Telomeres are the repetitive sequences of non coding DNA found at the end of the chromosomes.
Q: One of the most important proteins associated with DNA that helps to organize it in the nucleus is…
A: In this question, we have to explain one of the most important proteins associated with DNA that…
Q: dentify TWO major categories of chromatin responsible in compaction of chromosome
A: Chromatin : It is a complex of DNA and protein which forms chromosomes within the nucleus of the…
Q: Decondensed chromatin, but not condensed chromatin O can be remodeled. is associated with…
A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…
Q: HOW DO WE KNOW? how chromosomes are distributed during cell division, both in dividing somatic…
A: Introduction Almost all cells in the body can divide and form new daughter cells however, there…
Q: How many microtubules are in a centrosome? In thedrawing, circle and label one microtubule and…
A: The centrosome is an organelle and microtubules are organized in the centrosome. A centrosome is…
Q: h eukaryotes, genetic material is packaged tightly in the nucleus. Which one of the ollowing most…
A: 1) In eukaryotes, the DNA molecule of the chromosomes are tightly packed to fit itself inside the…
Q: What makes up the protein component of nucleosome core (the "bead" that the DNA is wrapped around)?…
A: Given: Need to find the best option among the following five options.
Q: Match the description to the correct phase of interphase. DNA is copied. The centrosomes…
A: The correct sequence for the match is 4) S 2) G1 1) G0 3) G2
Q: A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c)…
A: A nucleosome is defined as a 3D structure composed of approximately two turns of DNA wrapped…
Q: DNA structure from least to most condensed. Chromatin Chromatid Nucleosome
A: Condensation of the DNA is required to pack up the genetic material so as to pack the huge amount of…
Q: The DNA and associated proteins of a eukaryotic chromosome are called Chromatin Chromatosome…
A: Eukaryotic chromosomes are made up of DNA that is tightly coiled around histone protein clusters.…
Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
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- Explain the following terms: Non-histone Chromosomal (NHC) proteins, euchromatin & Heterochromatin.Across framework for chrom 11 osome movement during cell division 14 15 17 19.) the stage of çell division in which the cytoplasm divides to fórm two daughter cells 8. 9- 10 20.) chromosomes that are similar in morphology and genetic costitution 11 12 13 14 Down 15 16 14.) repeating units of chromatin structure, each consisting of a length of DNA wound around a complex of eight histone molecules 17 18 19 20 17.) The division of the cell nucleus resulting in two daughter nuclel, each with the sameWhich of the following statements about heterochromatin is FALSE? It contains many repeated sequences, but few actively transcribed genes. It remains condensed through most of the cell cycle. It is found next to the centromeres and on short arms in human chromosomes. It is enriched for transposable elments Histone proteins in heterochromatin are heavily acetylated, reducing their affinity for the DNA backbone.
- The picture below depicts electron micrographs of the major levels of chromatin structure. Match each of the listed conditions with the most likely levels of chromatin structure under that condition.Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide b. DNA double helix c. histones d. nucleosomes e. chromatinLess condensed region of an interplase chromosome that stains diffusely. Which one Beads on a string Heterochromatin Histone Euchromatin Octamer nucleosome
- A genetic disease has led to damaged chromatin that a scientist discovered in G1 of interphase. The genetic disease has resulted in the malformation of certain proteins. Given your understanding of the structure of chromatin, please discuss the likely damage this disease may cause.In the following diagram, what is the correct term for the structures indicated by letter B? O histones B Onucleosome O linker DNA GRUN 30 nm Chromatin Fiber D C B JuleWhich of the following statements is TRUE? O Interphase chromosomes are loosely compacted, overlapping, and intertwined with each other within the nucleus. O Interphase chromosomes are loosely compacted and do not associate with histones until the cell is preparing to divide. O Interphase chromosomes are also known as euchromatin. Condensed, metaphase chromosomes are also known as heterochromatin. O Radial loops in the condensing chromosome are formed due to interactions between 30 nm fibers and the scaffolding proteins of the nuclear matrix - producing the 300 nm fiber of the chromosome O None of these are TRUE
- please fill in the blank When the cell goes from M to GI, the number of nucleosomes on this stretch of DNA should ------, and the width of the chromatin fiber should -------. Please select one Newly made lamins should ( single peptide = SP), or (nuclear localization = NLS) or (Transit peptide =TP) or ( Transmembrane domain) or ( SP and NLS) or ( SP or TP) or (transcription activating domain) or ( None of these)Put the following levels of chromosome organization in order from least complex (least packaged form) to most complex (most packaged form). DNA strand 30-nm fiber Heterochromatin EuchromatinSolid Wire Models of Cell Division 1- Get four solid wires, 2 long (1 green and 1 red) and two short (1 green and 1 red). This will represent the chromatin in a cell. The wires of the same length are homologous. Red wires will represent the chromatin from the female parent while green wires represent the chromatin from the male parent. Label the chromatin as follows: long green- 1a short green- 2c long red- 1b short red- 2d 2- Let the cell pass S phase. Replicate or duplicate each chromatin fiber. Do this by getting another set of wire identical to the original set. Label as before. 3- Combine the replicated chromatin fiber using masking tape. The tape will also mark the position of the centromere. For the short chromatin, place the tape exactly at the middle while for the long chromatin, place it at a point % from the end of the wire. 4- Assume that the chromosome fibers are folded. This will now represent the chromosomes. OR V